On Fri, Jun 17, 2016 at 1:02 PM, Nicolas Dechesne <nicolas.dechesne@xxxxxxxxxx> wrote: > <bjorn.andersson@xxxxxxxxxx> wrote: >> msm_set_termios() is called whenever the tty is opened. Setting the baud >> rate requires a full reset of the msm serial block, even when the rate >> is unchanged. In the case when the same uart is used as console this >> reset will discard any console output data still being clocked out of >> the TX fifo. >> >> By skipping the rate-change in the case where the baud rate is unchanged >> since last request we can avoid the reset and the discarding of the >> data. >> >> Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx> > > > Tested-by: Nicolas Dechesne <nicolas.dechesne@xxxxxxxxxx> > > I no longer see this type of corruption on serial console > > [ 6.325118] ALSA device �[ 6.333338] Freeing unused kernel > memory: 572K (ffffffc000c10000 - ffffffc000c9f000) > [ 13.800269] remoteproc2: remote processor a20400�[ OK ] Started > Start the WCN core. > [ � Starting Update UTMP about System Runlevel Changes... oops. today i tried on APQ8064 boards , both IFC6410Plus and SD 600eval, and I can no longer 'type' into the serial console, I can get debug messages though. Reverting this change 'fixes' the problem. -- To unsubscribe from this list: send the line "unsubscribe linux-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
